<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>毛玻璃</title>
    <link rel="stylesheet" href="./031.css" type="text/css" />
  </head>
  <body>
    <!--
      filter PS里的滤镜，玩过的都懂，blur最常用
      backdrop-filter 对背景应用滤镜，产生毛玻璃的效果
     -->
    <div class="frosted-glass">
      <h1 class="title">sakura</h1>
    </div>
  </body>
</html>
